This is the first proposal from the Schema Bib Extend Group<http://www.w3.org/community/schemabibex/>, consisting of 60+ people from a broad cross section of publishers, libraries, and others interested in enhancing Schema.org's capabilities in the area of bibliographic and associated resources.
We are working on several proposals. However this appeared to be an obvious, simple, uncontroversial proposal to start with.
Proposal:
To promote the 'citation' property, currently on the MedicalScholarlyArticle<http://schema.org/MedicalScholarlyArticle> Type, up to the CreativeWork<http://schema.org/CreativeWork> Type. Many more creative work types other than medical, or general, scholarly articles can and do cite other works.
Although the focus of our group's proposal is obviously bibliographic works, this change could open up wider opportunities for web pages, music (sampling of tracks?), art (description of a collage?), etc.
More detail of the proposal is available on the group wiki: http://www.w3.org/community/schemabibex/wiki/Citation
Regards,
Richard